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| Reading all the messages in MQ |
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| Author |
Message
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| arun.buddha |
 Posted: Thu May 22, 2008 3:24 am Post subject: Reading all the messages in MQ |
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Newbie
Joined: 22 May 2008
Posts: 1
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Hi all , I am a new bie to MQ. I am having a piece of code
while( myQueue->currentDepth() )
{
myQueue->get( imsg , gmo );
cout << "Recv : " << buf ;
}
to read the messages in MQ sequentially. But, my get() method gets
blocked while processing next request. ( Queue has lot of messages and
initial read is successful. )
My options set at get is,
gmo.setOptions(MQGMO_WAIT | MQGMO_ACCEPT_TRUNCATED_MSG );
gmo.setWaitInterval( MQWI_UNLIMITED );
Anybody can help me to know about this? |
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| Vitor |
| Posted: Thu May 22, 2008 3:50 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
|
Ok:
- use the search facility. All your points have been asked and answered before.
- read the documentation. The Application Programmer Guide covers all these points, if not explicitly then in general.
- Get yourself on a training course. A programming one might be good looking at your code.
- your get call is blocking because you don't reset the object id it's looking for. The documentation will explain why you need to do this.
- do not use currentDepth to find how many messages there are. It doesn't do what you think it does, and your loop will not run the right number of times.
- include the fail if quescing option if you're using unlimited wait, or you'll prevent the queue manager closing cleanly.
Aside from that it was fine. 
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| bower5932 |
| Posted: Thu May 22, 2008 4:02 am Post subject: |
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Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
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| I'll also add that you might want to go look at some of the samples..... |
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